Improvement in weigh-lock scales



v 2 sh E. sAMPsoN. efS Sheet Weighkack Scales. N0 57,6% Patented Aug.28, 1866.

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um@ E I 2 SheetsSheet 2. E. SAMPSON.

Weighlock Scaies.

Patented Aug. 28, 1866.

I UNITED STATES PATENT ELNATHAN SAMPSON, OF LANSINGBRG, ASSIGNOR TOALFRED CLARK HITCHCOCK, OF TROY, NFV YORK.

IMPROVEMENT iN WEIGH-LOCK SCALES.

Specification forming part of Letters Patent No. 57,64 i, dated August2S, lcb.

. To all whom it may concern:

Be it known that I, ELNATHAN SAMrsoN,

of Lansingburg, in the county ot' Rensselaer and State ot` New York,have invented certain new and useful Improvements in ConstructingWeigh-Lock Scales 5 and l do hereby declare that the following is afull, clear, and exact description of the construction and operation otlthe same, reference being had to the annexed drawings, and tothe lettersoi' reference marked thereon, making a part of this specification, inwhich- On Sheet l, Figure l is a side elevation of the scale-beam sideot' a center section of said weigh-lock scale, showing the arrangementsand combination of the sustaining-levers and manner of connecting thecradle to said levers. Fig. 2 is an elevation ot the opposite side ofsaid lock, showingthe arrangement and combination ot' levers on thatside. Fig. 3 is a top view of the lock, and Fig. et is an end view ofthe saine.

The figures on Sheet 2 of the annexed drawings show in detail the mannerot' constructing, inserting', and operating the said weigh-lock scale,and in which Fig. 5 shows side elevation. Fig. 6 is an elevation ot theopposite central parts of said weigh -lock. Fig. 7 is a verticaltransverse sectional view taken through the center of said weigh-lock.Fig. S is an end view, and Fig. 9 is a detached view, ot' one ot thetransinitiing-knees used in connection with suitable rods arranged underthe door of said lock-chamber, for the purpose of connecting theweighing devices arranged on the opposite sides ofthe lock- Walls. Theremaining iigures on Sheet 2 show in -detail the manner ot' constructingthe sustaining-levers, and also of the parts operating in immediateconnection with them.

rlhe same letters have reference to like parts in each otthe figures.

The' nature of my invention consists in a combination of directsustaining-levers with bell-crank levers, for the purpose ot' supportinga cradle receiving the vessels to be weighed and transmitting the weightthrough other levers to the scale-beam, said sustaining-levers beingarranged in horizontal parallel positions to the side walls ot thelockchamber, substantially in manner as hereinafter fully described.

It also consists in a combination and arrangement ot' bell-crank leverswith a transmitting-lever, substantiall)` in manner and ior the purposehereinafter fullbv described.

lt also consists in the peculiar manner, substantiall)v as hereinafterfully described, ot' connecting the devices constituting a weighingapparatus, and arranged on opposite sides of a weigh-lock chamber,thereby doing away with the necessitiv ot' any superstructure otframe-work or ot' buildings over and across the lockchamber, thussecuring an unobstructed passage for masted vessels and steamboatsthrough said lock.

It also consists in a combination otl certain bell-crank levers,arranged with reference to and connected with the weighing devices ot'both sides of the lock-chamber in manner substantially as hereinaftert'ully shown, for the purpose ot' transmitting the weight or load on thecradle ot' said weigh-lock to the scale-beam of the same.

It also consists in the general combinations and arrangements of therespective parts, substantially in manner as hereinafter described, thewhole constituting an improved weighock scale.

In order to enable others skilled in the art of constructing weighingapparatus to make and use my improved weigh-lock scale, I will now fullydescribe the same, which is as tollows, viz:

A lock-chamber is first constructed, in manner substantially as shown inthe annexed drawings on Sheet 2. Upon the steps H H, which project fromthe side walls ot' said lock-chamber are placed and secured the metalfulcrum-bearingsD D, and upon the intermediate step, H', is placed thet'ulcrum-bearing E.

C C are direct sustaining-levers, having their fulcrum points or edgesconstructed of hard metal in the usual knife-edged form. These leversare placed with their fulcrumedges upon their respective bearingsD D,and they are so arranged with reference to the side walls and suspendedcradle ot' said lockchamber as to be substantiallvin parallel positionsto said walls and cradle, in manner as show-n in Figs. l and 2 ot' theannexed drawings.

F is a bell-crank lever, duly adjusted with 2 Y sacan.

its knife-edge bearing upon the fulcrum-bearing E, which bearing isformed with an open space between its sides, so as to allow the ends otsaid levers UG to pass under said bell-crank lever F, that they may beproperly secured to the same by suitable links.

Suspended from said levers C C by the suspension-rods a a is thereceiving-cradle J, which receives and sustains the vessels to beweighed.

The levers C Gf, when arranged in manner and connected with thebell-crank lever F as above described, and attached to the cradle `J bysuspension-rods, constitute what I term a set of directsustaining-levers when the same are employed in constructing Weigh-lockscales. As many as may be necessary of said sets of levers are employedon each side of the lock-chamber, and they are arranged, respectively,in corresponding positions directly opposite each other. The number ofsaid sets required in a weigh-lock scale will, of course, depend uponthe length ot' the lock-chamber ot1 the saine. These respective sets oflevers are so arranged on the side Walls of the lockchamber that thesuspension-rods et a of the cradle J may be arranged substantially atequal distances from eachother, in manner as seen in Fig. 5, Sheet 2, ofannexed drawings. This manner of arrangement, as above set forth,secures a better equalization of the direct sustainingpoints along thecradles length, thereby causing the stress or weight of vessels, whenbeing weighed, to be more evenly distributed over said bearing-points,which prevents sudden strains and liability of deran gement of theweighingapparatus.

The bell-crank levers F of the respective sets of said levers C C areconnected together by means ot' connecting-rods d d,`

in manner as shown in Fig. 5; and the said sets of levers G C', or theWeighing appa` ra-tus arranged on the respective side walls of thelock-chamber, are connected together in manner substantially as follows:On the wall of said lock-chamber opposite to the scale-beam side iscombined and arranged in a suitable frame, B, for supporting them, thebell-crank levers c c, said levers being' connected with levers F bymeans ot' rods l d, and arranged at right angles to said levers c c isthe lever 17, attached to which is the connecting-rod b, which passesdown through a chamber or tube formed in the side wall of the lock tothe bottoni thereof, and is there joined to a counecting-knee, j', inmanner substantially as shown in Figs. 7 and 9 on Sheet 2 of annexeddrawings, said knee j' being connectedwith a corresponding knee, j",arranged at the bottom ot' the opposite wall, by means of theconnecting-rod G, vwhich is arranged in a tube or box under the ioor ot'the lock-chainber.

To the kneef is joined a connecting-rod, g, which connects with thelever h, as seen in Fig. 7, Sheet 2, and said lever h is connected by arod, 7c, to the connecting transmitting bell-crank lever s. Upon eachside of said lever s, and arranged in combination with 1t,

are the bell-crank levers t t', which are rcspectively connected to saidlever s by suitable rods or links r r, as seen in Fig. l, Sheet l, saidlevers t t being also respectively connected with the bell-crank levers-F F by means of rods d d. Said transmitting-lever li, connectingbell-crank levers, and levers tt are arranged and have their respectivebearing-points in a suitable frame, A, in manner substantially as shownin Figs. 1, 5, and 7 in the annexed drawings.

To the upright arms of said connecting bell-crank lever s are attachedrods m m, connecting, by means ot" snit-able links, with the bell-cranklever a, which connects, by means of rod l, with the scale beam L, thesaid scale-beam being constructed, arranged, and adjusted in a suitablemanner by any ot' the known modes ot' construction and adjustment inpublic use that may be adapted to Weighlock scales.

Having fully described my improved Weighlock scale, what I claim as newtherein, and desire to secure by Letters Patent, is-

l. The combination ot' the bell-crank lever F and the directsustaining-levers C and C', when said sustaining-levers are arranged inhorizontal parallel positions to the side Walls ot' the lock chamber,substantially as described, and for the purposes as set forth.

2. Arranged in connection with the bellcrank levers F F, in manner asdescribed, the combination of the bell-crank levers cpc andtransmitting-lever t', substantially as and for the purpose herein setforth.

3. Connecting the devices arranged on opposite sides of the lock-chamberand constituting a weighing apl'iaratus for weigh-lock scales byarranging the mechanical means employed for that purpose under the iioorof the lock-chamber, in manner substantially as herein described, andtor the objects as set forth.

et. Arranged and connected with the bellcrank levers F F, in manner asdescribed, the combination ot the bell-crank levers t t with thebell-crank connecting-lever s, for the purpose of transmitting theweight ot' the vessel resting upon the cradle to the scalebeam, inmanner substantially as herein described.

5. In combination with the bell-crank le- `vers c c andtransmitting-lever i, the mannersubstantially as herein described.

ELNATHAN SAMPSON. Witnesses:

J J. SAvAGE, P.- I. MARSH.

